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HVAC
NATE Hydronics Oil Service Specialty
Circulator and Zone Service
Knowledge Check
Circulator and Zone Service
Knowledge Check
Knowledge Check
1 / 15
The typical maximum water temperature for a radiant floor heating system using PEX tubing is 140 degrees F. What component limits supply water temperature from a high-temperature oil-fired boiler to this safe level?
A
A thermostatic mixing valve or injection mixing assembly
B
A pressure-reducing valve on the makeup water connection
C
A secondary expansion tank installed on the radiant loop
D
A backflow preventer on the domestic water supply
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